[API] Use subclass style

src/api/View.js

@@ -1,35 +1,19 @@
 define(['EventEmitter'], function (EventEmitter) {
-    function View(definition) {
-        var self = this;
-        var state = definition.state ? definition.state() : {};
-
-        function render() {
-            if (definition.render) {
-                definition.render(self.elements(), self.model(), state);
-            }
-        }
-
+    function View() {
         EventEmitter.call(this);
-        this.state = { elements: [], model: undefined };
-
-        if (definition.elements) {
-            this.elements(definition.elements());
-        }
-        if (definition.initialize) {
-            definition.initialize(this.elements(), state, render);
-        }
-        this.on('model', render);
     }
 
     View.prototype = Object.create(EventEmitter.prototype);
 
     ['elements', 'model'].forEach(function (method) {
         View.prototype[method] = function (value) {
+            this.viewState =
+                this.viewState || { elements: [], model: undefined };
             if (arguments.length > 0) {
-                this.state[method] = value;
+                this.viewState[method] = value;
                 this.emit(method, value);
             }
-            return this.state[method];
+            return this.viewState[method];
         }
     });